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(No Model.) 5 Sheets-Sheet 1.

J. S. GRAHAM & J. KANE. WOODWORKING MACHINE.

No. 522,754. Patented July 10, 1894.

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(No Model.) 5 Sheets-Sheet 2.

J. S. GRAHAM & J. KANE.v

WOODWORKING MACHINE.

No. 522,754. Patented July 10, 1894.

(No Model.) 5 Sheets--Sheet 4.

J. GRAHAM & J. KANE. WOODWORKING MACHINE.

N0. 522,754. Patented July 10, 1894.

(No Model.) 5 Sheets-Sheet 5.

J. S. GRAHAM & J. KANE. WOODWGRKING MACHINE.

No. 522,754. Patented July 10, 1894.

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Unirirso STATES PATENT OFFIC JAMES S. GRAHAM AND J OIIN KANE, OFROCHESTER, NE W YORK, ASSIGNORS TO HUGH BURKE, OF SCRANTON,PENNSYLVANIA, AND JAMES M. BURKE,

OF BUFFALO, NEW YORK.

WOODWORKING-MACHINE.

SPECIFICATION forming part of Letters Patent. No. 522,754, dated July10, 1894:.

Application filed April 15, 1893. Serial No. 470,424. (No model.)

To all whom it may concern:

Be it known that we, JAMES S. GRAHAM and JOHN KANE, citizens of theUnited States, re-

siding at Rochester, in the county of Monroe,

in the State of New York, have jointly in-' vented certain Improvementsin VVoodworking-Machinesof which the following is a specification,reference being had to the accompanying drawings.

[0 Our invention relates to certain improvements on the wood-workingmachinedescribed in the patent of W. E.Taft, No. 434,846, dated August19, 1890,which improvements are fully described and illustrated in thefollowin g specification and the accompanying drawings,-the novelfeatures thereof being specitied in the claims annexed to the saidspecification.

Our improvements are represented in the accompanying drawings, in whichFigure 1 is a side elevation. Fig. 2 represents the reversing mechanism.Fig. 3 is a plan view the shaft h being broken away. Fig. 4 is an endelevation of the lever and slide for controllingthe movements of thecarriage. Fig. 5 represents a detail. Fig. 6 is a section on the line6-6, Fig. 3- showing the parts below that line. Fig. 7 is a plan view ofthe adjustable cams which operate the mechanism by which thewood-holding chucks are rotated. Fig. 8 is a side elevation of the same.Fig. 9 is a plan view of one of the revolving heads, showing the chuckwhich holds the wood, the notched rings, the driving gear 3 5 andworm-gear. Fig. 10 is a partial elevation of the chuck, showing thenotched rings, the adjustable latch and its spring. 11 is a plan view ofthe latch, its spring and ratchet. Fig. 12 represents the hand-lever,eccentric and cam for operating the worm and the latches. Fig. 13 is asection on the line 13- 13, Fig. 3, showing the construction of theratchet on the shaft which operatesthe woodholders. Fig. 14 representsthe arm and link 5 connection by which the return movement of the rackis produced. Fig. 15 is a plan of the same parts. Fig. 16 represents theratchet and dog for operating the chuck of the woodholder.

Our improved wood-working machine consists essentiallyof a suitablesupportingframe, carrying a revolving cutter-head, a carriage, which isprovided with rotatable wood-holding chucks, andjis arranged toreciprocate relatively to the cutter so as to present the wood thereto,and mechanism for imparting and controlling the reciprocating movementsof the carriage, and for giving the chucks a partial revolution at eachreciprocation, so as to dress the wood into any desired polygonal 6oshape and also mechanism for causing the chucks to make a completerevolution while the carriage remains stationary, so as to producecylindrical forms. The knives on the cutter head are made with irregularcutting edges, as indicated in Fig. 3, so as to dress the wood to anydesired ornamental form, either circular, square, hexagonal, oroctagonal, doc.

In the drawings the frame is represented as consisting of theside-framesAA', connected together by suitable cross-bars B B.

C is the revolving cutter-head,'provided with the knives at, havingcutting edges of the desired form, and sustained by a shaft journaled insuitable boxes D D on the sideframes.

E is the driving pulley, by which power is applied to the machine.

The reciprocating carriage consists of the standards F F connectedtogether by the transverse bars G G, which are arranged to slide on theside-frames A A ,being held down by gibs 1), Figs. 4; and 6, engagingwith the ribs 0 projecting inward from the side- 8:; frames. Thestandard F is bolted to the bars G G, while the standard F is gibbed oroth erwise fitted to the bars, so that the distance between thestandards may be increased or diminished, as indicated by the dottedlines o F Fig. 3, so as to adapt the machine to working sticks oflumber, H, of difierent lengths. ol and d are screws arranged parallelto each other, and connected together by the shaft e and bevel gears f fby which the ad- 9 5 justment of the standard F is elfected. The screwsd d engage in nuts 9 g on the stand ard F and are supported in suitablejournals on the bars G G at their other ends.

The shaft e is provided with suitable sup- 10o 2 saavse ports, and atone end it is squared or fitted for the application of a wrench, so asto secure the simultaneous movement of the screws.

Each of the standards F F is fitted with a head I I, arranged to slidein suitable ways or guides, and connected together by the shaft h,bevels i if, and screws m m, so that the heads may be simultaneouslyadjusted relative to the cutter O. The standards are provided withsuitable openings within which the heads I I slide. Each of the headscarries a rotary chuck or wood-holding device, J J -the construction ofwhich is shown more in detail in Figs. 9 and 10. The heads are providedwith circular recesses formed partially in their lower edges andpartially in the caps, n, Fig. 6, in which the circular bodies K, Fig.9, of the wood-holders revolve.

The simultaneous rotary movement of the wood-holders is secured by thetransverse shaft M, journaled in the heads I I, and provided on eitherend with the gears 0 0', meshing with the gears 19 p on the bodies ofthe wood-holders.

Any suitable form of chuck or clamping device may be employed in thewood-holders, to secure it firmly-in place therein. A scrollchuck of anordinary form, is represented in Fig. 10 in which the sliding jaws j areprovided with pins projecting into spiral slots in the plate of the gearL, which is secured to the body of the wood holder by the disk 70, andscrews q. By turning the gears LL the jaws j are caused to slide in andout, so as to clamp or release the wood.

In order to provide a convenient means for operating the chucks, weemploy the transverse shaft N, journaled in the heads I I, and thehandles 0 0', provided with dogslZ, engaging with ratchets rr on theshaft, which are attached by suitable sleeves to the pinions s s, whichmesh with the gears L L on the wood-holders. 1

The dogsl Z are ordinarily held out of engagement with the teeth of theratchets r 'r' by the springs a, but, by grasping thepnter end of thehandles, the handpieces are pressed inward, compressing the springs, and

causing the dogs to engage with the teeth of the ratchets, so that thepinions s s and the gears L L are caused to turn in either direction bya to-and-fro movement imparted to the handles,-thus opening or closingthe chucks. The ratchets and pinions are loose on the shaft N, beingprovided with suitable collars by which they are held in placelengthwise thcreof. The shaft N also serves to support the latches t 15,which engage with the notches in the rings 4, 6 or 8 on the woodholders.These latches, when engaged in the notches of the rings, serve toprevent the wood-holders from revolving during the cutting operation, sothat the wood can be dressed square, hexagonal, or octagonal, accordingto the number of notches in the ring employed. Provision is made foradjusting the latches .in a groove in the latch 25.

lengthwise on the shaft N, as indicated by the dotted lines in Fig. 9,so as to cause them to engage with any one of the rings. The shaft N isslotted lengthwise, and the latches are provided with keys and setscrews, by which they are secured to the shaft N so as to be movedsimultaneously by a partial rotation of the shaft, to engage ordisengage them from the rings on the two wood-holders.

The latches are held in engagement with the notches in the rings by anysuitable springs,a convenient arrangement by which the springs are madevariable in tension and adjustable lengthwise, being represented inFigs. 10 and 11, in which Q is a short shaft or stud inserted in a holein the head I, and carrying a hub '0, around which the spring 10 iscoiled, and the ratchet-wheel :12. A pawly pivoted on the head engageswith the teeth of the ratchet. At one end the spring to is fastened tothe hub o, and the other end rests The stud Q turns in the head,-beingsecured therein by a setscrew entering a groove or other suitabledevice. The hub 11 is splined on the stud Q. The exposed end of the studis fitted for the application of a wrench, so that the tension of thespring may be varied. For convenience of illustration, the spring andratchet are omitted in Fig. 3, butit will be understood that both of thelatches it are provided with the springs.

Proceeding now to a description of the mechanism for imparting thereciprocating movement to the carriage, it should be understood thatthis is effected automatically by reversing the rotation of the feedscrews, R R, bymeans of the change-gears, S S. Continuous rotary motionis imparted to the shaft T, arranged in suitable supports across the endof the machine, by any suitable means, such as the belts and pulleys /VW shown in Fig. 3, by which the shaft is driven from the cutter-headshaft. The shaft T carries a gear U, which meshes with the gear S, whichmeshes with the gear S. Parallel with the shaft T is arranged the shaftV, which carries the gear X, and it is provided at each end with thebevel-gears z a, by which it is connected with the feed-screws R R. Thegear X is so arranged on the shaft V that either of the gears S or SJnaybe engaged with it. These gears are supported on a swinging armY pivotedon the shaft T. Rotary motion in either direction may be imparted to theshaft V, and consequently to the feed-screws R R, by meshing one or theother of the gears S S with the gear X. When both the gears S S are outof mesh with the gear X, the shaft V and the feed-' screws and carriagewill remain stationary. This is the position indicated by the full linesin Figs. 1 and 2. The feed-screws are connected with the carriage bymeans of the nuts a a attached to the ends of the bar G.

In order to cause the carriage to automatically reverse its motion ateach end of its travel, we employ the shifter-bar attached at one end tothe arm D on the frame Y carrying the gears S S, and arrange suitablecams or levers at each end of the path of the carriage, so that thegears S S will be alternately engaged with the gear X by the movement ofthe carriage itself. E F are cams arranged in the path of the carriageat each end thereof, and connected with the shifterbar 0 by therock-shafts 11 1) and arms 6 6 A lug or arm on the carriage comes incontact with the cam E at the end of the movement toward the left-hand,and shifts the bar 0 so as to disengage the gear S from the gear X, andengage the gear S with it, so as to reverse the direction of therotation of the shaft V and the feed-screws R R. At the right hand endof the travel of the carriage, a similar operation takes place, the camF being moved, so as to disengage the gear S from and to engage the gearS with the gear X.

In order to effect the reversal with certainty, we employthe springbolts, f 4 f Fig. 1, which are arranged in adjustable reversing-blocks g9 carried by the cross-bars G G of the carriage.

When the spring bolt f comes in contact with the cam E the spring on-itis compressed, until its resistance becomes sufficient to shift the bar0 disengaging the notch h from the plate -after which the springexpands, and forces the bar quickly to the extremity of its travel,insuring the engagement of the gear S with the gear X, and of the notchh with the plate or catch The spring-bolt slides through an eye, on thereversing-block 9 which is made adjustable lengthwise by the screw 3'passing through a slot in the block and threaded into the lower part ofthe arm attached to the cross-bar G which carries the nut a of thefeed-screw R. The end of the spring-bolt which comes in contactwith thecam 3 is enlarged, and its other end is provide with jam-nuts by whichthe tension of the spring may be adjusted.

The construction and. arrangement of the spring-boltf Fig. 1,Which comesin contact with the cam F is similar to that already described for thespring-bolt f except that, in order to provide for stopping thereciprocation of the carriage at the right hand end of its travel, wherethe Wood is most conveniently removed or replaced, the reversing block gis made to slide to and from the sideframe A, as indicated most plainlyin Fig. 4,- so as to bring the spring-bolt) out of line with the cam FThe rock-shaft b is provided with an auxiliary cam H The reversing blockg carries an additional push-bolt or striker, I0 Figs. 4 and 5.

When the operator desires to stop the movement of the carriage at itsright hand end, he pulls the lover I outward, shifting the reversingblock g, from the position shown in full lines in Fig. 4 to thatrepresented by the dotted lines, and moving the spring-boltf are slottedto permit this movement.

out of line with the cam F and bringing the.

70, the shifter bar 0 will only be moved far enough to disengage thegear S from the gear X,the bar resting with the shallow notch k on theplate i In this case both the change-gears are disengaged from the gearX, and the carriage remains stationary at the extremity of its travel tothe right. The shifter bar 0 is provided with one or more adjustableweights J by the adjustment of which lengthwise, the amount ofresistance ofiered by the notches h ,"h it against disengagement fromthe plate 2' may be varied. The reversing block g is fitted by adovetailed slide to an adjustable block Z secured by boltj to an armprojecting downward from the cross-bar G. The lever I is pivoted to theblocks Z and m and its lower end is jointed to the sliding reversingblock 9 The pushbolt 10 is provided with jam-nuts, arranged on each sideof a flange projecting downward from the reversing-block as indicated inFig. 5,so that it may be adjusted lengthwise. If the operator nowdesires to start the carriage again into operation, he brings thespring-bolt f into line with the cam F by pushing the upper end of thelever I inward, and then, by means of the lever J, pivoted at a hedisengages the central notch h5 in the shifter bar from the plate 11 andshifts the bar so as to cause the gear S to mesh with the gear X. Thecarriage will now continue to reciprocate so long as the arrangementdescribed is maintained. In order to facilitate the disengagement of thenotches from the plate, we provide the lever J 4 with a pivotedhand-piece, 19 connected bya rod g with the shifter bar C ,so that, bypressure on the hand-piece, the shifter is lifted positively a shortdistance, as indicated by the full and dotted lines in Fig. 2. Thejoints between the bar and the lever J and the arms 6 e If however theoperator desires to move the carriage until the wood holders aredirectly over the buttery-in position for doing round work, he leavesthe reversing block 9 in the position in which the push-bolt k is inline with the auxiliary cam H and starts the carriage, which will nowmove inward, until, when the wood-holders are directlyover the cutterhead, the arm r on the reversing block will come in contact with thelever L connected with the rock-shaft 11 (in line with cam B which leverwill be pushed downward, thereby shifting the bar 0 and stopping themotion of the carriage. The carriage may be now again returned to theright hand end of its travel, by the use of the lever J. The lever L isadjustably connected to a lug on the boss of the cam H by means of ascrew, 8 Fig. 1, passing through a slot in the lever. The inner end ofthe lever L? is turned upward into the path of the arm 1' By the properadjustment of the lever, the carriage may be stopped with the centers ofthe wood-holders exactly-over thecenter of rotation'of thecutter-head C.

In order to impart a continuous revolution to the wood-holders, forturning round work, 1

we drive one of the wood-holders by a worm, t and worm-gear 20 It isnecessary to provide means-for engaging and disengaging the worm andworm-gear, and also for lifting the latches t 25 out of the notches inthe rings on the wood-holders, and for keeping them out 1 Both while thewood-holders are revolving. of these purposes we accomplish by means ofthe hand-lever N, which operates an eccentric which moves the worm intoengagement with the worm-gear, and also acts as a cam to turn the shaftN and hold the latches away from the rings. The shaft N extends beyondthe head I, and is provided. with a bent arm L which is depressed bythemovement of the lever N so as to lift the latches out of the notchesin the rings.

turns the shaft N so as to raise the latcht out of the notch in the ringon the woodholder. The latch 15 will also be lifted at the same time.The latches will remain in their elevated position as long as the leverN remains turned outward, that is as long as the worm t is engaged withthe worm -gear M The worm is supported byaspindle, m, passing through aneccentric sleeve w, Fig. 12, arranged to turn in the arm 2 projectingoutward from thehead I. The eccentric sleeve to is fastened to the leverN and turns with it, so that when the lever is swung outward, thespindle 0c and the worm 25 are lowered so that the latterengages withthe worm-gear 10 The rotation of the worm then drives the wood-holder inthe standard F and this movement is transmitted to the wood-holder inthe other standard by the shaft M and the gearing already described. 'yis a lever provided with a spring and pivoted to the lever N, by whichthe pin n is withdrawn from a hole in the arm 2 when it is desired toengage the worm with the worm-gear. The

pin it serves to prevent the accidental engagement of the worm andworm-gear. The spindle cc is provided with a collar at its end. In orderto provide for driving the worm 29,

while at the same time permitting the adjustment of the wood holdersrelatively to the cutter-head, and the reciprocation of the carriage, wemake use of the upright shaft T and the telescoping shaft U, providedwith universal joints V V The shaft T is driven from the shaft T by thebevel-gears r, and at its upper end it transmits motion, through thebevel-gears T to one member of the universal joint V. One part of thetelescoping shaft U is splined and slides within the other during thereciprocating movement of the carriage, or, if desired, the shaft may ofthe shaft T are supported by a suitable bracket. The ratchet on theshaft M permits it to revolve when the worm is used to rotate thewood-holders, without interfering with the gear 0 or the rack B Thepinions s s and ratchets r 7" turn freely on the shaft N when thewood-holders and gears L L are revolved in turning cylindricalshapes,-the dogs Z Z being held away from the ratchets by the springsto.

The mechanism for imparting a suitable intermittent, rotary motion tothe wood-holders consists essentially of the pivoted adj ustable cams AA Figs. 6, 7, and 8 operating the sliding rack 13 the gear 0 and pinionD Fig. 3, on the shaft M. As already mentioned, the shaft M is geared atits ends to the wood-holders, so that the latter revolve simultaneously.As the carriage reciprocates, the cams A A cause the rack 13 to slideupward and this motion is transmitted to the shaft M and thewood-holders, by the gear 0 and pinion D Fig. 3, the return movementbeing secured by the spring E Fig. 1, which is connected with the rackby a swinging arm G and link H The upward movement of the rackdisengages the latches t 25 from the notches in the rings of thewoodholders, by causingv the cam or lug 0 Fig. 6, which turns on theshaft M, to come in contact with the arm 1? on the shaft N carrying thelatches. The return or downward movement of the rack turns the shaft Mso as to rotate the wood-holders. The cam 0 and the pinion D movetogether,-a ratchet being interposed between them and the shaft M.- Asthe cam 0 returns to the position shown by the fulllines in Fig. 6, thesprings to force the latches down into contact with the rings, so thattheir points enter those notches in the rings which are next broughtopposite to,them by the movement of the wood-holders. The movement ofthe rack B is indicated by the full and dotted lines in Fig. 6. A serveto raise the rack B during the latter part of the movement of thecarriage in each direction, so as to give the wood a partial rotationtwice during each complete reciprocation,the cutter C consequentlyacting on the wood as the latteris presented to it from eitherdirection. The lower end of the rack B is provided with the rollers a awhich project outward from it in opposite directions. The cam A ispivoted on an arm or stud b projecting inward from the side-frame 'A,and the cam A is pivoted on a similar stud (1 The free ends of the camsproject inward,

resting on an arm 0 which sustains them.

The cam A is provided with an inwardly projecting inclined flange 6arranged in line with the roller a so as to come in contact therewith asthe latter is carried along by the carriage. The cam A is provided witha corresponding projecting fiange, f arranged in line with the roller 6.but inclined in the slotted plate g Fig.8, and the screw 71. The

flange e is in a corresponding way made adjustable by a plate and thescrew 2' Whilethe carriage is traveling from left to right in Fig. 6,the roller 0. comes against the lower side of the flange e and lifts thecam A as indicated by the full lines in Fig. 6, and the roller a passesalong the upper side of the flange f of the cam A The rack B is thuslifted until the roller 0, passes beyond the flange f when the rackfalls,under the lnfluence of the spring E and, durmg the return movementof the carriage, the roller a passes under the flange f rais ingit, asindicated in Fig. 8, while the roller a travels up the flange e of thecam A again raising the rack, but permitting it to fall as soon as theroller moves beyond the upper end of the flange a".

It will thus be seen that the rack is forced downward quickly at or nearthe end of each reciprocating movement of the carriage and that thismovement of the rack operates to lmpart a partial rotation to thewood-holders through the gear 0 the pinion D shaft M and gearing 0 10,0'19.

It will also be understood that it is necessary to turn the wood-holders through a longer are when the machine is dressing the lumbersquare in section than when making hexagonal or octagonal shapes, and inorder to do this we arrange to give the rack B a variable amount ofmovement, according to the form desired. For this purpose the rack 13 isprovided with an adjustable stop, which limits its downward movement,and consequently the distance which it can be raised by theinclinedflanges e f of the cams A A In cutting square work, the whole or nearlythe whole of the inclined surfaces of the camfianges is employed, whilefor polygonal shapes a portion only of these surfaces will impart therequisite amount of movement to the rack.

D Fig. 6, represents the adjustable stop, which rises and falls with therack, and in its lowest position rests upon the upper end of theguide-way I" in which the rack travels,-a bufier E of india-rubber,being interposed at this point. F is a screw, arranged to turn in aprojecting arm on the stop, and threaded into the upper end of the rack.By means of the screw F the position of the rack may be adjusted so asto vary the relation of the rollers at the lower end of the rack B withthe cams A A A scale may be made on the rack at any convenient point, asatG Fig. 6, to indicate the position in which the rack should be set forworking on different shapes.

A set-screw K, Figs. 1 and 6, is used, to secure the rack 13 to the partD after it has been adjusted to the proper relative position by thescrew F By making the inclined flanges e f 2 of the cams A A adjustablelengthwise of the cams, weare enabled to vary the points at which therack B begins and ends its upward travel relatively to thereciprocations of the car riage,-by which we are enabled to save time inthe running of the machine by varying the length of the reciprocation ofthe carriage,which may be shortened for sticks of small diameter.

In varying the distance of the wood-holders from the cutter, which isdone byturniug the screws, m m by the cross-shaft 72. and bevels t ql'so as to adapt the machine to turning or shaping lumber of diiferentdiameters, it may be necessary to adjust the gear 0 and this is providedfor by supporting the gear on a stud, E, Figs. 1 and 6, which passesthrough a slotted opening in the standard F, and is secured by a nut orbolt. By this means an adj ustment is provided by which the pinion D onthe shaft M is keptin proper mesh with the gear 0 whether thewood-holders are set close to or at a distance from the cutter-head.

The holes through the wood-holders are-cylindrical except at their innerends, where the clamping devices are located. The sideframes A A arecored, to secure lightness and strength.

The construction of the ratchet on the shaft M will be understood fromthe sectional view, Fig. 13. P is a collar fastened on the shaft andhaving a series of ratchet teeth 2)? formed in its surfacein position toengage with the pawl 411 which is arranged to slide in a hole or way inthe projecting arm 0 on the sleeve d The gear D is secured to one end ofthe sleeve d and the cam 0 Fig. 6 to theother.

The sleeve turns the shaft in one direction, by means of the pawl, butthe shaft can revolve in the sleeve,-the teeth of the ratchet pushingthe pawl outward. 11 is a spring which forces the pawl inward, and a aplug which holds the spring in place. The ratchet P has twenty-fourteeth, so that the woodholders can be turned one-fourth, one-sixth orone-eighth of a revolution at each movement of the rack B The spring Ewhich secures the return movement of the rack 13*, and operates thewood-holders, is attached to the standard F, by the socket-piece Z, Fig.1, and the bracket 10 s is a shaft which extends entirely through thespring, being arranged to turn in the bracket and socket piece,andprovided with the ratchet c which has a hub to which the end of thespring is fastened. The other end of the spring is attached to a hub onthe arm G which is connected by the link H with the adjustable stop D,as shown in Fig. 14. The arm G2 turns freely on the shaft 5 A pawl, 0Fig. 1, pivoted on the socketpiece Z engages with the teeth of theratchet o The outer end of the shaft s is fitted for the application ofa wrench and it will thus be seen that by turning the shaft, the tensionof the spring may be adjusted, the pawl engaging with the teeth of theratchet, and maintaining the tension of the spring. As the rack B andthe stop D move upward, the arm G turns on the shaft 3 compressing thespring,-the power of which secures a quick return movement of the rack,which is cushioned by the buffer E interposed between the lower end ofthe stop and the standard F.

The shaft h which connects the screws 7% m by which the heads I I areraised or lowered, is splined, and the bevel-gear c" on it slidesthrough it when the standard F is adjusted to adapt the machine to longor short lumber. 'In a similar manner the shaft M is splined to slidethrough the gear 0. The latch t and pinion and ratchet s 0" are alsoadjustable lengthwise of the shaft N.

The cam o is formed on a ring which is divided and clamped on the sleeved as indicated at t), Fig. 6, so that the cam can be adjusted to timeits action on the arm P to lift the latches.

It will be observed that by providing the rings 4, 6 and 8 with four,six and eight notches respectively, we are enabled to adapt the machineto dressing square, hexagonal and octagonal forms. The rings areconveniently formed in one piece by placing the ring having four notchesbetween the other two rings, in which case the middle ring can benotched by planing through every other one of the notches of theeight-notched ring.

Our improved Wood-working machine may be made of any suitabledimensions, adapted f to dressing ornamental forms of any desired lengthor diameter, either circular or polygj onal as may be preferred. Themachine can 1 also be used for dressing twelve sided forms.

Provision is made for fastening the heads i I I in any position relativeto the cutter in i which they may be set, by means of the bolts, 5

L1 Fig. 12.

We claim- 1. The combination, with the supporting frame and the cutter,of the reciprocating; carriage provided with the wood-holders, the

spring-boltf the movable spring-boltf, and

push-bolt it the cams E F and H shifteri bar '0 and suitablechange-gears operated by the shifter-bar, substantially as described. j

2. The combination, with the supportingj frame and cutter, of thereciprocating car-i riage, provided with the wood-holders, the movablepush-bolt k and arm 0, the cam H and stop-lever L the shifter bar andsuitable change-gears adapted to be operated by f the shifter-bar,substantially as described.

bolt le the cams E F and H the shifter bar and suitable change-gears,substantially as described.

4. The combination, with the reciprocating carriage of the rotatablewood-holders J J, provided with one or more notched rings, and connectedso as to revolve together, a worm gear attached to one of the holders, ashiftable worm for operating the worm gear, latches adapted to engage inthe notches 1n the rings, and suitable connecting mechanism, whereby thelatches are disengaged from the rings while the worm is engaged with theworm-gear, substantially as described.

5. The combination,with the carriage, of the wood-holders J J, providedwith one or more notched rings, and connected so as to revolve together,the worm-gear a attached to one of the holders, the shiftable worm t theshaft N carrying latches it, and arm L thecam-lever N, arranged toengage the worm with the worm-gear, and to disengage the latches fromthe rings, substantially as described.

6. The combination, with the supporting frame and cutter, of thereciprocating carriage, provided with the wood-holders .J J, theworm-gear a attached to one of the holders, the shiftable worm t and thetelescoping shaft U provided with one or more universal joints,substantially as described.

7. Thecombination, with the reciprocating carriage, of the wood-holderJ, provided with gear L, the pinion s, ratchet 'r, and lever 0, providedwith dog land spring a, substantially as described.

8. The combination, with the supporting frame provided with plate t',.of the cutter O, the reciprocating carriage provided with thewood-holders, suitable change-gearing operated by the carriage, theshifter-bar 0 provided with notches h h", the hand-lever J hand-piece pand rod (1 substantially as described.

9. The combination, with the supporting frame and cutter of thereciprocating carriage containing the wood-holders, the pivotedcam Aprovided with adjustable inclined flange f the rack B and suitableconnecting mechanism whereby the motion of the rack is transmitted tothe wood-holders, substantially as described.

10. The combination, with the supporting frame and cutter, of thereciprocating carriage containing the wood-holders, the pivoted cams A Aprovided with inclined flanges e f, the rack B suitable connectingmechanism whereby the motion of the rack is transmitted to thewood-holders, and the spring E whereby the return movement of the rackis secured, substantially as described.

11. The combination, with the supporting frame and cutter, of thereciprocating carriage, containing the wood-holders, the pivoted cams AA provided with oppositely in clined flangese f the rack B provided withadjustable stop D suitable connecting mechanism for transmitting themovement'of the rack to the wood-holders, and the spring E whereby thereturn movement of the rack is insured, substantially as described.

oted cams A A having oppositely inclined r adjustable flanges e f therack B and suitable connecting mechanism whereby the motion of the rackis transmitted to the woodto the shaft so as to be adjusted lengthwisethereon, substantially as described.

115. The combination, with the wood-holder J, provided with notchedrings 4:, 6 and 8, of the latch t, arranged to be adjusted lengthwise onits support, and the correspondingly adjustable spring w, substantiallyas described.

16. The combination, with the supporting frame and cutter, thereciprocating carriage carrying the wood-holders J J connected togetherby shaft M and suitable gearing, the worm-gear a attached to one of theholders, the shiftable worm t the telescoping shaft U provided with oneor more universal joints, the bevels r and the upright shaft T, andsuitable connections whereby the shaft is operated from the cutter,substantially as described.

JAMES S. GRAHAM. JOHN KANE. Witnesses:

GEO. B. SELDEN,

R. F. OSGOOD.

